private file system

Hi all,

My Drupal website is running very slow and we just wake up to trying to optimize the performance. I read a lot of thing about performance and caching system before and my main reason to post here is that I'm a bit confuse so I need some advice to find the best way to increase the perfomance of my site.

Maybe my post will also help high perfomance beginner.

First my website is:
- around 130 modules enabled (50 custom modules + cck, views, ctools, panels + different front end and back en modules)

Hello,

I have a problem with Panels 3.3 and Ctools 1.3 (I guess). I'm using Drupal 6.16.

I use the "Flexible Layout" in Panels to create a two-column-display for my user profile pages. On my local drupal installation everything works fine. But when it comes to the online version the display of my two columns breaks.

I've found, that panels (or ctools) creates a css file which provides the needed css code for the two-columns. The path to this css file is wrong and I don't know how to fix this :(.

Here's what I think causes the problem: